hey chocolateblue, you may want to check out the following:http://www.insecure.org/nmap/http://www.ethereal.com/http://www.snort.org/
to use these you will need WinPcap (assuming you have a windows box), it allows packet capture over the wire on local networks, and such. Nmap used to ship with it but it might pay you to go here:http://www.winpcap.org/
to get the latest version.
Please be wary when playing with these tools, use them on yourself and OWN network. It is up to you to do the right thing, but i guess if you are here (BC) you are just after knowledge anyway. These programs come with disclaimers so please read them and abide by the law. We need more whitehats. Have fun
Edited by lucent, 06 August 2005 - 10:10 PM.